Selective Laser Melting Machine SLM 125

  • SLM 125

The Selective Laser Melting Machine SLM 125 offers a build envelope of 125 x 125 x 125 mm³. The flexibly applicable machine with high productivity is equipped with a single fiber laser (1 x 400 W) and produces high-quality metal build parts.

The precise and economical SLM 125 has been designed for quick results in the research and development sector, as well as for the production of smaller build parts.

In addition, the SLM 125 provides a build volume reduction of 50 x 50 x 50 mm³ thus decreasing the amount of powder by 80%.

The highest build rates in this class are achieved thanks to the patented bidirectional coating. The machine concept is impressive thanks to its patented process gas filtration and its safety. The adjustable gas flow allows optimal process properties with low gas consumption.

The SLM 125 is available with an optional software for reading CAD/STL data or slice data for configuring the process-specific and build part specific parameters. The open operation concept enables the construction processes to be carried out individually and customized manually. Stainless steel, tool steel, cobalt-chrome, nickel alloy, aluminium or titan can be processed. Thanks to the machine’s compact design, with few powder-transporting components, materials can be changed quickly and easily. With a variety of options and expansion possibilities, the system can be adapted to individual customer requirements.

The Powder Sieving Machine PSM is a perfect complement to the SLM 125 machine. During the sieving process the rough particles are sieved out and are seperated in an overflow bottle. The reusable metal powder, which has the defined grain size, is transported to the storage container and can be directly used again.

Quality assurance of the production process

A comprehensive monitoring and quality assurance system enables a high degree of process control in the machine.

Melt Pool Monitoring (MPM) is an optionally available on-axis tool for visualizing the melt pool in the SLM process. Data from MPM can be used as a resource for efficiently developing and evaluating the process parameters. It also provides important insights about optimizing the process parameters of individual component parts. In the production of safetycritical parts, the data collected serves as documentation for quality assurance in the production process. The recorded data enables conclusions to be drawn regarding irregularities during fusion, which can lead to anomalies in the components.

Laser Power Monitoring (LPM) is an optionally available on-axis monitoring system that continuously measures and documents TARGET and ACTUAL emitted laser output throughout the production process. On the one hand, the module can be used as an early warning system for preventing machine downtime with targeted measures when irregularities occur. On the other hand, it makes an important contribution to quality assurance thanks to its process documentation.

Machine configuration for all types of metal powders / 
Technical changes reserved
Build Envelope (L x W x H)125 x 125 x 125 mm³ reduced by substrate plate thickness
3D Optics Configuration Single (1x 400 W) IPG fiber laser
Build Rateup to 25 cm³/h
Variable Layer Thickness20 µm - 75 µm, 1 µm increments
Min. Feature Size140 µm
Beam Focus Diameter70 µm - 100 µm
Max. Scan Speed10 m/s
Average Inert Gas Consumption in Process2 l/min (argon)
Average Inert Gas Consumption Purging70 l/min (argon)
E-Connection / Power Input400 Volt 3NPE, 32 A, 50/60 Hz, 3 kW
Compressed Air Requirement / ConsumptionISO 8573-1:2010 [1:4:1], 50 l/min @ 6 bar
Dimensions (L x W x H)1400 mm x 900 mm x 2460 mm
Weight (incl. / without powder)approx. 750 kg / ca. 700 kg
*depending on material and build part geometry